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Cheap flights from White Plains to St. Louis from $169

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from White Plains to St. Louis departing on 3/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from White Plains to St. Louis

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
6:22 am - 9:40 am
HPN
-
STL
4h 18m1 stop
American Airlines Logo
6:28 am - 2:30 pm
STL
-
HPN
7h 02m1 stop
$287American Airlines
Fri, May 8 - Tue, May 12
Delta Logo
10:29 am - 5:50 pm
HPN
-
STL
8h 21m1 stop
Delta Logo
10:19 am - 3:49 pm
STL
-
HPN
4h 30m1 stop
$313Delta
Fri, Jan 23 - Sun, Jan 25
American Airlines Logo
6:56 pm - 11:55 pm
HPN
-
STL
5h 59m1 stop
American Airlines Logo
6:02 am - 2:30 pm
STL
-
HPN
7h 28m1 stop
$319American Airlines
Thu, Jan 1 - Sun, Jan 4
American Airlines Logo
11:04 am - 4:34 pm
HPN
-
STL
6h 30m1 stop
American Airlines Logo
5:00 am - 1:05 pm
STL
-
HPN
7h 05m1 stop
$443American Airlines
Sun, Dec 21 - Thu, Jan 1
American Airlines Logo
11:04 am - 4:34 pm
HPN
-
STL
6h 30m1 stop
American Airlines Logo
6:02 am - 2:30 pm
STL
-
HPN
7h 28m1 stop
$485American Airlines
Sun, Dec 21 - Sat, Jan 3
American Airlines Logo
11:04 am - 4:34 pm
HPN
-
STL
6h 30m1 stop
American Airlines Logo
9:08 am - 5:26 pm
STL
-
HPN
7h 18m1 stop
$501American Airlines
Sun, Dec 21 - Fri, Jan 2
American Airlines Logo
5:16 pm - 10:44 pm
HPN
-
STL
6h 28m1 stop
American Airlines Logo
6:02 am - 2:30 pm
STL
-
HPN
7h 28m1 stop
$503American Airlines
Tue, Dec 23 - Thu, Jan 1
American Airlines Logo
5:16 pm - 10:44 pm
HPN
-
STL
6h 28m1 stop
American Airlines Logo
6:02 am - 2:30 pm
STL
-
HPN
7h 28m1 stop
$545American Airlines
Tue, Dec 23 - Sat, Jan 3
American Airlines Logo
5:16 pm - 10:44 pm
HPN
-
STL
6h 28m1 stop
American Airlines Logo
9:08 am - 5:26 pm
STL
-
HPN
7h 18m1 stop
$561American Airlines
Tue, Dec 23 - Fri, Jan 2
Delta Logo
10:29 am - 2:48 pm
HPN
-
STL
5h 19m1 stop
Delta Logo
6:35 am - 11:56 am
STL
-
HPN
4h 21m1 stop
$580Delta
Fri, Jan 16 - Mon, Jan 19

American Airlines flights from White Plains to St. Louis

Our best American Airlines deals on White Plains to St. Louis flight tickets
American Airlines
May 8
HPN6:22 amWhite Plains Westchester County
4h 18m
1 stop
STL9:40 amLambert-St Louis
May 12
STL6:28 amLambert-St Louis
7h 02m
1 stop
HPN2:30 pmWhite Plains Westchester County
$287
Find similar
American Airlines
Jan 1
HPN6:56 pmWhite Plains Westchester County
5h 59m
1 stop
STL11:55 pmLambert-St Louis
Jan 4
STL6:02 amLambert-St Louis
7h 28m
1 stop
HPN2:30 pmWhite Plains Westchester County
$319
Find similar
American Airlines
Dec 11
HPN3:12 pmWhite Plains Westchester County
7h 35m
1 stop
STL9:47 pmLambert-St Louis
Dec 13
STL2:09 pmLambert-St Louis
7h 38m
1 stop
HPN10:47 pmWhite Plains Westchester County
$383
Find similar

Delta flights from White Plains to St. Louis

Our best Delta deals on White Plains to St. Louis flight tickets
Delta
Jan 23
HPN10:29 amWhite Plains Westchester County
8h 21m
1 stop
STL5:50 pmLambert-St Louis
Jan 25
STL10:19 amLambert-St Louis
4h 30m
1 stop
HPN3:49 pmWhite Plains Westchester County
$313
Find similar
Delta
Dec 13
HPN6:10 amWhite Plains Westchester County
5h 14m
1 stop
STL10:24 amLambert-St Louis
Dec 16
STL6:00 amLambert-St Louis
5h 00m
1 stop
HPN12:00 pmWhite Plains Westchester County
$345
Find similar
Delta
Dec 11
HPN6:50 pmWhite Plains Westchester County
5h 52m
1 stop
STL11:42 pmLambert-St Louis
Dec 15
STL6:00 amLambert-St Louis
7h 28m
1 stop
HPN2:28 pmWhite Plains Westchester County
$421
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from White Plains to St. Louis that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated December 10, 2025.
Use the filters below to find and compare flights from White Plains to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

White PlainsSt. Louis

HPN - STL

HPNSTL

White Plains Westchester County

Fri 5/8

6:22 am-9:40 am

1 stop4h 18m

Lambert-St Louis

Tue 5/12

6:28 am-2:30 pm

1 stop7h 02m

$287

White PlainsSt. Louis

HPN - STL

HPNSTL

White Plains Westchester County

Fri 1/23

10:29 am-5:50 pm

1 stop8h 21m

Lambert-St Louis

Sun 1/25

10:19 am-3:49 pm

1 stop4h 30m

$313

White PlainsSt. Louis

HPN - STL

HPNSTL

White Plains Westchester County

Thu 1/1

6:56 pm-11:55 pm

1 stop5h 59m

Lambert-St Louis

Sun 1/4

6:02 am-2:30 pm

1 stop7h 28m

$319

White PlainsSt. Louis

HPN - STL

HPNSTL

White Plains Westchester County

Sun 12/21

11:04 am-4:34 pm

1 stop6h 30m

Lambert-St Louis

Thu 1/1

5:00 am-1:05 pm

1 stop7h 05m

$443

White PlainsSt. Louis

HPN - STL

HPNSTL

White Plains Westchester County

Sun 12/21

11:04 am-4:34 pm

1 stop6h 30m

Lambert-St Louis

Sat 1/3

6:02 am-2:30 pm

1 stop7h 28m

$485

White PlainsSt. Louis

HPN - STL

HPNSTL

White Plains Westchester County

Sun 12/21

11:04 am-4:34 pm

1 stop6h 30m

Lambert-St Louis

Fri 1/2

9:08 am-5:26 pm

1 stop7h 18m

$501

White PlainsSt. Louis

HPN - STL

HPNSTL

White Plains Westchester County

Tue 12/23

5:16 pm-10:44 pm

1 stop6h 28m

Lambert-St Louis

Thu 1/1

6:02 am-2:30 pm

1 stop7h 28m

$503

White PlainsSt. Louis

HPN - STL

HPNSTL

White Plains Westchester County

Tue 12/23

5:16 pm-10:44 pm

1 stop6h 28m

Lambert-St Louis

Sat 1/3

6:02 am-2:30 pm

1 stop7h 28m

$545

White PlainsSt. Louis

HPN - STL

HPNSTL

White Plains Westchester County

Tue 12/23

5:16 pm-10:44 pm

1 stop6h 28m

Lambert-St Louis

Fri 1/2

9:08 am-5:26 pm

1 stop7h 18m

$561

White PlainsSt. Louis

HPN - STL

HPNSTL

White Plains Westchester County

Fri 1/16

10:29 am-2:48 pm

1 stop5h 19m

Lambert-St Louis

Mon 1/19

6:35 am-11:56 am

1 stop4h 21m

$580

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to St. Louis from

How to get the cheapest flight ticket from White Plains to St. Louis

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to St. Louis?

In general, August is the cheapest month to fly from White Plains to St. Louis. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $324. The month of February is another great option to travel to St. Louis, with average flight prices from White Plains averaging around $335.

What is the cheapest day to depart on your flight to St. Louis?

The cheapest day to depart on your flight to St. Louis is on a Wednesday when prices can be found for as low as $311. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $442. These prices are subject to change though, so be sure to set up a Price Alert for flights to St. Louis.

What is the cheapest time of day to depart on your flight to St. Louis?

Flying to St. Louis from White Plains in the morning is the least expensive time of day to depart. momondo users have found prices as low as $343 when looking at flights departing in the morning. In the evening is when there is more demand to fly to St. Louis, so prices are often more expensive at around $370 per ticket.

When to book flights from White Plains to St. Louis

Are you open to changing your travel dates? Check out the ideal times to fly from White Plains to St. Louis according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap White Plains to St. Louis (HPN to STL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from White Plains to St. Louis

Fastest flight time

5h 14m

Direct flights

None
The fastest flight from White Plains to St. Louis takes 5h 14m
There are no direct flights from White Plains to St. Louis. There are no popular flight routes from White Plains to St. Louis.
Search flight deals

  • How far is White Plains Westchester County to Lambert-St Louis by plane?

    Lambert-St Louis is 885.7 mi away from White Plains Westchester County. A reasonable flight in good conditions will take 5h 14m.

  • When did momondo last update prices for flights from White Plains Westchester County Airport to Lambert-St Louis Airport?

    Prices for flights from White Plains Westchester County Airport to Lambert-St Louis Airport were last updated today.

  • How many operators does momondo search for flights from White Plains Westchester County Airport to Lambert-St Louis Airport?

  • How old do you have to be to fly from White Plains Westchester County Airport to Lambert-St Louis Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from White Plains Westchester County Airport to Lambert-St Louis Airport.

  • What documentation or ID do you need to fly to Lambert-St Louis Airport?

    The travel and health documents you'll need for your trip to Lambert-St Louis Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Lambert-St Louis Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from White Plains to St. Louis?

Best airlines flying from White Plains to St. Louis

Compare and see reviews for airlines that fly from White Plains to St. Louis with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $260Free CancellationRating
7.9
8,007 reviews
Search Delta flights
American AirlinesPriceFrom $280Free CancellationRating
7.2
11,048 reviews
Search American Airlines flights

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
St. Charles
Chesterfield
Hermann
Fairview Heights
Maryland Heights
O'Fallon
Florissant
Fenton
Wentzville
St. Peters
Collinsville
Alton
Farmington
Festus
Clayton
Glencoe
Edwardsville
Eureka
Litchfield
Shrewsbury

Why use momondo?

Why should I use momondo to find a flight deal from White Plains to St. Louis?

Finding the right flight to St. Louis from White Plains is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to St. Louis quick and easy, saving you time and money.

Can I find flights from White Plains to St. Louis with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for White Plains to St. Louis flights to just show those with flexible booking policies.

How can momondo help me find flights from White Plains to St. Louis?

Once you have performed a search for White Plains to St. Louis flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from White Plains to St. Louis right now. Can momondo alert me if prices change?

If you are simply researching potential flights to St. Louis, momondo offers a useful price alert feature which will track prices for flights to St. Louis from White Plains and alert you when they change.

An easier way to manage your St. Louis trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
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